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A blockchain-based data transaction method and system

A transaction method, block chain technology, applied in the transmission system, data processing application, digital data protection, etc., can solve unfair problems and achieve the effect of reducing data storage costs

Active Publication Date: 2021-09-17
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the way data is traded under the current model is unfair to users of data generators

Method used

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  • A blockchain-based data transaction method and system
  • A blockchain-based data transaction method and system
  • A blockchain-based data transaction method and system

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Embodiment Construction

[0042]The core of this application is to provide a blockchain-based data transaction method and system, which solves the defects of centralized storage by using the decentralized characteristics of the blockchain. Each user is a node in the blockchain network. By deploying the smart transaction contract to the blockchain network, it is expected to establish a data transaction channel between the data generator and the data buyer. In terms of data storage, a distributed storage network with low storage cost and high security performance is selected to make the transaction data Store in the form of ciphertext and generate a data index with a very small amount of data to locate the corresponding ciphertext, which is different from directly saving the data to the blockchain network, which can effectively reduce the cost of data storage. At the same time, the blockchain network will save all transaction records and synchronize them to all nodes, which greatly avoids the possibility ...

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Abstract

This application discloses a data transaction method based on blockchain, which solves the defects of centralized storage by using the decentralized characteristics of blockchain. Each user is a node in the blockchain network. The contract is deployed to the blockchain network in order to establish a data transaction channel between the data generator and the data purchaser. In terms of data storage, a distributed storage network with low storage cost and high security performance is selected to store the tradable data in ciphertext And generate a data index with a very small amount of data to locate the corresponding ciphertext, which is different from directly saving the data to the blockchain network, which can effectively reduce the cost of data storage. At the same time, the blockchain network will save all transaction records and synchronize them to all nodes, which greatly avoids the possibility of tampering and makes all transaction records open and transparent. The present application also discloses a block chain-based data transaction system at the same time, which has the above-mentioned beneficial effects.

Description

technical field [0001] This application relates to the technical field of blockchain, in particular to a data transaction method and system based on blockchain. Background technique [0002] In the era of big data, data has immeasurable value no matter for individuals or enterprises, so the application of data trading industry was born. When users use the services provided by service (application) providers, they will also continuously generate personal data, which has extremely high commercial value. [0003] As the data generator that generates these personal data, it should be able to obtain the trading rights of this part of the data. The right to process personal data according to individual wishes, while users lose the ability to collect and process personal data, resulting in today's service providers monopolizing the personal data generated by these users in the process of using these services, and may use these in private The phenomenon of data working for its own...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q20/38G06Q40/04H04L29/08G06F21/60G06F21/62G06F21/64
CPCG06F21/602G06F21/6218G06F21/64G06Q20/3829G06Q40/04H04L67/1097
Inventor 余荣朱熔熔张浩川鲍芳张泽航
Owner GUANGDONG UNIV OF TECH